deps: update V8 to 10.8.168.20

PR-URL: https://github.com/nodejs/node/pull/45230
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>

4 files changed, 19 insertions, 12 deletions

diff --git a/deps/v8/include/cppgc/heap-handle.h b/deps/v8/include/cppgc/heap-handle.h
index 5a0f9cd2ed..8d825133b0 100644
--- a/deps/v8/include/cppgc/heap-handle.h
+++ b/deps/v8/include/cppgc/heap-handle.h
@@ -12,6 +12,7 @@ namespace cppgc {
 namespace internal {
 class HeapBase;
 class WriteBarrierTypeForCagedHeapPolicy;
+class WriteBarrierTypeForNonCagedHeapPolicy;
 }  // namespace internal
 
 /**
@@ -34,6 +35,7 @@ class HeapHandle {
 
   friend class internal::HeapBase;
   friend class internal::WriteBarrierTypeForCagedHeapPolicy;
+  friend class internal::WriteBarrierTypeForNonCagedHeapPolicy;
 };
 
 }  // namespace cppgc
diff --git a/deps/v8/include/cppgc/internal/member-storage.h b/deps/v8/include/cppgc/internal/member-storage.h
index 98389b8cd3..0eb6382070 100644
--- a/deps/v8/include/cppgc/internal/member-storage.h
+++ b/deps/v8/include/cppgc/internal/member-storage.h
@@ -61,7 +61,7 @@ class CageBaseGlobal final {
 #undef CPPGC_REQUIRE_CONSTANT_INIT
 #undef CPPGC_CONST
 
-class CompressedPointer final {
+class V8_TRIVIAL_ABI CompressedPointer final {
  public:
   using IntegralType = uint32_t;
 
@@ -170,7 +170,7 @@ class CompressedPointer final {
 
 #endif  // defined(CPPGC_POINTER_COMPRESSION)
 
-class RawPointer final {
+class V8_TRIVIAL_ABI RawPointer final {
  public:
   using IntegralType = uintptr_t;
 
diff --git a/deps/v8/include/cppgc/internal/write-barrier.h b/deps/v8/include/cppgc/internal/write-barrier.h
index 2d8e14be08..37bc5c973e 100644
--- a/deps/v8/include/cppgc/internal/write-barrier.h
+++ b/deps/v8/include/cppgc/internal/write-barrier.h
@@ -12,6 +12,7 @@
 #include "cppgc/heap-state.h"
 #include "cppgc/internal/api-constants.h"
 #include "cppgc/internal/atomic-entry-flag.h"
+#include "cppgc/internal/base-page-handle.h"
 #include "cppgc/internal/member-storage.h"
 #include "cppgc/platform.h"
 #include "cppgc/sentinel-pointer.h"
@@ -283,7 +284,7 @@ struct WriteBarrierTypeForCagedHeapPolicy::ValueModeDispatch<
       return SetAndReturnType<WriteBarrier::Type::kGenerational>(params);
     }
 #else   // !defined(CPPGC_YOUNG_GENERATION)
-    if (V8_UNLIKELY(!subtle::HeapState::IsMarking(handle))) {
+    if (V8_UNLIKELY(!handle.is_incremental_marking_in_progress())) {
       return SetAndReturnType<WriteBarrier::Type::kNone>(params);
     }
 #endif  // !defined(CPPGC_YOUNG_GENERATION)
@@ -326,11 +327,6 @@ class V8_EXPORT WriteBarrierTypeForNonCagedHeapPolicy final {
   template <WriteBarrier::ValueMode value_mode>
   struct ValueModeDispatch;
 
-  // TODO(chromium:1056170): Create fast path on API.
-  static bool IsMarking(const void*, HeapHandle**);
-  // TODO(chromium:1056170): Create fast path on API.
-  static bool IsMarking(HeapHandle&);
-
   WriteBarrierTypeForNonCagedHeapPolicy() = delete;
 };
 
@@ -348,7 +344,13 @@ struct WriteBarrierTypeForNonCagedHeapPolicy::ValueModeDispatch<
     if (V8_LIKELY(!WriteBarrier::IsEnabled())) {
       return SetAndReturnType<WriteBarrier::Type::kNone>(params);
     }
-    if (IsMarking(object, &params.heap)) {
+    // We know that |object| is within the normal page or in the beginning of a
+    // large page, so extract the page header by bitmasking.
+    BasePageHandle* page =
+        BasePageHandle::FromPayload(const_cast<void*>(object));
+
+    HeapHandle& heap_handle = page->heap_handle();
+    if (V8_LIKELY(heap_handle.is_incremental_marking_in_progress())) {
       return SetAndReturnType<WriteBarrier::Type::kMarking>(params);
     }
     return SetAndReturnType<WriteBarrier::Type::kNone>(params);
@@ -364,7 +366,7 @@ struct WriteBarrierTypeForNonCagedHeapPolicy::ValueModeDispatch<
                                           HeapHandleCallback callback) {
     if (V8_UNLIKELY(WriteBarrier::IsEnabled())) {
       HeapHandle& handle = callback();
-      if (IsMarking(handle)) {
+      if (V8_LIKELY(handle.is_incremental_marking_in_progress())) {
         params.heap = &handle;
         return SetAndReturnType<WriteBarrier::Type::kMarking>(params);
       }
diff --git a/deps/v8/include/cppgc/member.h b/deps/v8/include/cppgc/member.h
index 71f9cab652..9bc383634f 100644
--- a/deps/v8/include/cppgc/member.h
+++ b/deps/v8/include/cppgc/member.h
@@ -28,7 +28,7 @@ namespace internal {
 
 // MemberBase always refers to the object as const object and defers to
 // BasicMember on casting to the right type as needed.
-class MemberBase {
+class V8_TRIVIAL_ABI MemberBase {
  public:
 #if defined(CPPGC_POINTER_COMPRESSION)
   using RawStorage = CompressedPointer;
@@ -68,13 +68,16 @@ class MemberBase {
   V8_INLINE void ClearFromGC() const { raw_.Clear(); }
 
  private:
+  friend class MemberDebugHelper;
+
   mutable RawStorage raw_;
 };
 
 // The basic class from which all Member classes are 'generated'.
 template <typename T, typename WeaknessTag, typename WriteBarrierPolicy,
           typename CheckingPolicy>
-class BasicMember final : private MemberBase, private CheckingPolicy {
+class V8_TRIVIAL_ABI BasicMember final : private MemberBase,
+                                         private CheckingPolicy {
  public:
   using PointeeType = T;